Metal-pot of type-bar-making machines



WEBB

A. E. JEANS AND P. T. HAYES. METAL POT OF TYPE BAR MAKING MACHINES.

APPLICATION FILED JUNE 24, 1919- 1,331,264:. Patented Feb. 17,1920.

3 SHEETSSHEEI I.

A E. JEANS AND P. T. HAYES. METAL POT OF TYPE BAR MAKING MACHINES.

7 APPLICATION FILED JUNE 24, l9l9. 1,331,264. Patented Feb. 17,1920.

3 SHEETSSHEEI 3 Mm a UNITED STATES PATENT OFFICE.

ALLAN EDGAR JEANS AND PETER THOMAS HAYES, OF LIVERPOOL, ENGLAND.

Specification of Letters Patent.

Patented Feb. 17, 1920.

Application filed June 24, 1919. 'Serial No. 306,500.

To all whom it may concern:

Be it known that we, ALLAN EDGAR J BANS and PETER Trroams HAYES, subjects of the King of GreatBritain, residing at Liverpool, in the county of Lancaster and Kingdom of England, respectively, have invented certain new and useful Improvements in or Relating to the Metal-Pots of Type-Bar- Making Machines, of which the following is a specification.

This invention has reference to the melting pots of machines for producing stereotyped lines or bars of type as a substitute for type setting the said invention having for its object means for stirring or mixing the molten metal in the pot with a view to keeping the metal at a uniform consistency. This is a very important desideratuin be cause the elements in the alloy (tin and antimony) being the lighter metals are liable to rise to or remain on the surface, thus robbing the molten alloy at the bottom of the pot of the very ingredients which are relied on to give the metal the hardness necessary to produce suitable lines of type for printv The invention will be understood from the following description reference being had to the accompanying drawings, in which Figure 1 is a general view of the device.

Fig. 2 is a vertical section of a melting pot with our invention applied thereto.

Fig. 3 is a vertical section showing a modification.

Referring to Figs. 1 and 2 the invention comprises a perpendicularly arranged rod A which is attached to the pump plunger B so as to move up and down with it. hen the pump plunger B moves up, the rod A moves up with it out of the molten metal in the pot C, but when the plunger moves on its down stroke it carries the rod with it into the molten metal. This down stroke of the rod A is arranged to take a body of the metal at the top of the pot deep down into the lower part of the pot, and on the up stroke to draw metals at the bottom of the pot up toward the surface thereby insuring an eflicient mixing of the metals of which the alloy is composed. By this means therefore the three ingredient metals which are relied on to give the alloy its hardness are kept uniformly mixed and retain their proper proportions throughout the pot, and so a better type is produced for printing.

The rod A in its preferred form is of circular shape in cross section. It is made solid or tubular. This solid or tubular rod A is split from the lower end for about one third or thereabouts of its length, the two arms thus formed being bent or splayed apart into curvilinear shape. These two curvilinear arms have longitudinal grooves or channels on their opposing surfaces to give them a good bite on the molten metal in the pot, and enable them to collect and for a time hold the metal. They are also perforated to allow them to cut through the metal on the down and up strokes of the pump plunger, and permit the molten metal to flow through the perforations. It will thus be seen that on the down and up strokes of the pump plunger the molten metal in the pot is agitated, thereby insuring that the ingredients will be mingled or mixed one with another. Otherwise the lighter metal ingredients of the alloy which are relied on to give a hard face to the type, are liable to float on the surface and eventually make dross and the heavier ingredients are liable to sink to the bottom. By the present invention this is avoided, metal is saved, and a more solid slug or line of type is produced. Each time the pot is charged with new metal either by hand or automatically, this rod will push such metal deep down into the lower part of the pot. It is to be understood however that We do not limit ourselves to the precise form of rod A described, as changes therein could readily be suggested which while they might change the appearance of the rod would not involve a departure from the scope of the invention herein set forth. For instance the rod could be designed to act upon a large or a small area of the molten metal in the pot according to requirements, or it might be designed to act upon the molten metal contained in perforated container or colander described and claimed in my pending application filed simultaneously with the present application Serial Number 306,499. This is shown in Fig. 3 in which the mixer takes the form of a short perforated horizontal tube D which is attached to the pump plunger B by means of a rod E and arm F so as to move up and down with it. The rod E which carries the mixer D at its lower end dips down into the container or colander G contained in the pot C, and when the plunger moves up, the mixer D moves up with it, but when the plunger moves on its down stroke, it carries adapted to reciprocate therein, metalmixing means cooperating with the plunger and 3 adapted on the down stroke of said plunger into the pot .to convey a body of molten metal from the upper part thereof to the lower part there0f,-thereby insuring an efiicient mixing of the metals of which the alloy is composed. p

2. In combination with the melting pot of type'har making machine, a perforated container therein, a pump plunger adapted to reciprocate in said pot, metal mixing means v cooperating W1tl1 the plunger and adapted on the down stroke of said plunger into the] pot to move down into said containerand 'convey a body of molten metal from an upper portion of said containerto a lower part thereof, thereby insuring an efiicient mixing of the'metal 111 said container.

3'. A device for mixing or stirring the mOlten'metaI 1n the melting pots of type bar making machines, comprising automatic reciprocating means adapted to descend into and rise from theyessel in which the metal is containedso as to push the surface metal to the lower part of the mixing or stirring effect.

In witness whereof we have hereunto signed our names this 6th day of June 1919,

pot and produce a A in the presence of two subscribing witnesses.

ALLAN EDGAR JEANS. 7

PETER THOMAS HAYES.

WVitnesses: 'F. GQWILLIAMS,

J. McLAeH Ax. 

